Vaisala HMT310 - Manual (Page 87)

Chapter 7 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 87
CHAPTER 7
TECHNICAL DATA
This chapter provides the technical data of the HMT310.
Specifications
Table 19 Relative Humidity Specifications
Property Description / Value
Measuring range 0 ... 100 %RH
Sensor
Vaisala HUMICAP ® 180R
Vaisala HUMICAP ® 180RC
Vaisala HUMICAP ® 180VHP
Vaisala HUMICAP ® 180VHPC
for typical applications
for applications with chemical purge
and/or warmed probe
catalytic sensor for environments with
vaporized hydrogen peroxide (H
2
O
2
)
catalytic sensor with chemical purge
for H
2
O
2
environments
Accuracy (including nonlinearity,
hysteresis and repeatability)
at +15 ... +25 C
at -20 ... +40 C
at -40 ... +180 C
± 1 % RH (0 ... 90 %RH)
± 1.7 % RH (90 ... 100 %RH)
± (1.0 + 0.008 × reading) %RH
± (1.5 + 0.015 × reading) %RH
Factory calibration uncertainty
(+20 °C)
±0.6 % RH (0 ... 40 %RH)
±1.0 % RH (40 ... 97 %RH)
(Defined as ± 2 standard deviation
limits. Small variations possible, see
also calibration certificate.)
Response time (90%) for
HUMICAP ® 180R and
HUMICAP ® 180RC at +20°C in
0.1 m/s air flow
17 s with grid filter
50 s with grid and steel, netting filter
60 s with sintered filter